What brand are the original spark plugs for the Malibu?

[Jayden]

The spark plug model for the Malibu is LTR6IX-11, which is an iridium spark plug. Main types of spark plugs include: standard spark plugs, extended insulator spark plugs, electrode spark plugs, seat-type spark plugs, pole-type spark plugs, and surface gap spark plugs. Steps for replacing spark plugs: Open the hood, lift the engine's plastic cover, remove the high-voltage ignition wires, and mark each cylinder's position to avoid confusion. Use a spark plug socket to remove the spark plugs one by one. While removing them, check for any external debris like leaves or dust and ensure they are thoroughly cleaned. Place the new spark plug into the spark plug hole, hand-tighten it a few turns, and then use the socket to tighten it further. Reinstall the high-voltage ignition wires in the firing order, then snap the cover back into place.

[MacAnastasia]

I previously researched the engine details of the Malibu. The original spark plugs are usually ACDelco, as it's a proprietary brand of General Motors. For my 2018 2.0T engine, it uses the ACDelco 41-110 model, which features iridium material for fast ignition and long lifespan. This design matches the original ECU system, improving fuel efficiency and reducing emissions. The recommended replacement interval is around every 60,000 kilometers, depending on driving style and road conditions. If the car starts sluggishly or experiences shaking, check the spark plug condition first. Buying original parts online is moderately priced—slightly more expensive than third-party options but more reliable. If you're skilled, you can replace them yourself, but you'll need a socket wrench.

[JulianaLee]

I've been driving my Malibu for almost five years, and the original spark plugs were ACDelco. After replacing them at the repair shop last time, the engine starts much smoother, and fuel consumption has improved slightly. These OEM parts undergo rigorous testing by Chevrolet and typically last 5-6 years. It's recommended to check them during regular maintenance to avoid unexpected failures. For example, if the spark plugs are worn out, the engine may respond sluggishly or emit black smoke, increasing exhaust pollution. When inspecting them yourself, open the hood and check for signs of electrode erosion, but it's best to leave the replacement to professionals to ensure proper fit and safety.

[DelJackson]

As someone who frequently works on cars, I know that the Malibu's original spark plugs mostly come from ACDelco. They cost a bit more but are worth it because the factory precision helps reduce ignition gap issues. If non-original parts are incorrectly installed, it may cause shaking or misfiring, affecting the car's condition. It's recommended to inspect and replace them every 50,000 kilometers or so, along with cleaning the ignition coils to maintain the overall system's health.